In genetically altered mice, genes are transferred by injection into ____________________ that are
____________________ into a foster mother. Fill in the blank(s) with the appropriate word(s).
ANS: fertilized eggs; implanted
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Investigators have found a new species bacteria that lives under both aerobic and anaerobic conditions. They hypothesize that different genes are expressed in each condition. What experiment could test this hypothesis and identify important genes?
A. Completely sequence the genome of the bacteria in both aerobic and anaerobic conditions B. Collect mRNA from both anaerobic and aerobic conditions and generate two cDNA libraries C. Measure levels of RNA Polymerase in both conditions D. Design primers to a specific region of the genome and sequence this region during both anaerobic and aerobic conditions Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about gene expression? transcriptional. Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The presence of thorns on a rose bush or the hard shell of a turtle are both examples of _______.
a. mimicry b. mechanical defense c. chemical defense d. camouflage
Reverse transcriptase does not have a high degree of fidelity. This means that
A. the immune system is more likely to recognize RNA viruses compared to DNA viruses. B. RNA viruses tend to be more prone to evolution compared to DNA viruses. C. DNA viruses tend to be more prone to evolution compared to RNA viruses. D. vaccinations are more easily created for RNA viruses that use this enzyme.
If needed (as in the absence of insulin), fatty acids in the liver can be metabolized and used for energy. The eventual breakdown products of fatty acids in the liver are known as:
A) Ketone bodies B) Glycoleins C) Amino acids D) Pyruvic acids